<template>
    <div>
        <div class="search">
            <input  v-model="keyword" class="search-input" type="text" placeholder="输入城市名或拼音" />
        </div>
        <div class="search-content" ref="search" v-show="keyword">
            <ul >
                <li class="search-item border-bottom" v-for="item of list" :key="item.id" @click="handleCityClick(item.name)">{{item.name}}</li>
                <li class="search-item border-bottom" v-show="hasNoData">没有找到匹配数据</li>               
            </ul>
        </div>
    </div>
</template>

<script>
import Bscroll from 'better-scroll'
import {mapMutations} from 'vuex'
export default {
    name: 'CitySearch',
    props: {
        cities: Object
    },
    data () {
        return {
            keyword: '',
            list: [],
            timer: null
        }
    },
    computed: {
        hasNoData () {
            return !this.length
        }
    },
    watch: {
        keyword () {
            if (this.timer) {
                clearTimeout(this.timer)
            }
            if (!this.keyword) {
                this.list = []
                return
            }
            this.timer = setTimeout(() => {
                const result = []
                for (let i in this.cities) {
                this.cities[i].forEach((value) => {
                    if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                    result.push(value)
                    }
                })
                }
                this.list = result
            }, 100)
        }
    },
    methods: {
        handleCityClick (city) {
            // this.$store.commit('changeCity',city)
            this.changeCity(city)
            this.$router.push('/')
        },
        ...mapMutations(['changeCity'])
    },
    mounted () {
        this.scroll = new Bscroll(this.$refs.search)
    }
}
</script>

<style lang="stylus" scoped>
    @import '~styles/varibles.styl'
    .search
        height: .72rem
        background: $bgColor
        padding: 0 .1rem
        .search-input
            box-sizing: border-box
            padding: 0 .1rem
            height: .62rem
            line-height: .62rem
            width: 100%
            text-align: center
            border-radius: .06rem
            color: #666
    .search-content
            z-index: 1
            overflow: hidden
            position: absolute
            top: 1.58rem
            left: 0
            right: 0
            bottom: 0
            background: #eee
            .search-item
                line-height: .62rem
                padding-left: .2rem
                background: #fff
                color: #666

</style>
